CN109294074A - Dedicated high flowing high flame retardant PP composite material of a kind of online mould pressing process of roving glass fiber and preparation method thereof - Google Patents
Dedicated high flowing high flame retardant PP composite material of a kind of online mould pressing process of roving glass fiber and preparation method thereof Download PDFInfo
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- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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Abstract
The invention discloses dedicated high flowing high flame retardant PP composite materials of the online mould pressing process of a kind of roving glass fiber and preparation method thereof, it is specifically made of the raw material of following parts by weight: 30~55 parts of the common co-polypropylene of high fluidity, 20~45 parts of high crystalline co-polypropylene of height flowing, 5~15 parts of organic hypophosphite fire retardant, Halogen phosphorus -5~15 parts of nitrogenated flame retardant, 3~10 parts of fire retarding synergist；Present invention has an advantage that being directed to urgent need of the current new-energy automobile to flame-retardant polypropylene composite material, using ternary flame retardant compounding, the technical solution of use in conjunction, successfully solves the low inherent shortcoming of polypropylene material flame retardant property；In addition, finger, the selection of high-flowability polypropylene base-material are melted using height, while realizing fire retardant fine dispersion, prepared flame-retardant polypropylene composite material has good processing fluidity, it is a kind of new-energy automobile special-purpose anti-flaming material for integrating excellent anti-flammability, good technique suitability with the online mould pressing process perfect matching of roving glass fiber needed for product molding.
Description
Technical field
The invention belongs to technical field of polymer materials, and in particular to a kind of dedicated high stream of online mould pressing process of roving glass fiber
Dynamic high flame retardant PP composite material and preparation method thereof.
Background technique
Polypropylene is one of most commonly used material of application range in current polymer thermoplastic matrix material, has synthesis
Mechanical property is good, the low (0.90~0.93g/cm of density3), resistance to electricity and chemical-resistance it is excellent, and melt-processed good fluidity adds
The outstanding advantages such as work temperature low (180-200 DEG C) are commonly used in the fields such as automobile, consumer electronics, industrial electrical equipment, civilian product,
The inside and outside decorations product of some types and functor especially in automobile.
However polypropylene material also has the inherent shortcoming of itself, that is, height is inflammable, self-extinguishment is poor, this and its own
The hydrocarbon structure of saturation strand it is closely related, it is therefore, poly- in conventional thermoplastic, polymeric materials flame retardant property research
Fire-retardant propylene is one of highest material system of development difficulty；Traditional Flame Retardant Agent of Polypropylene is mostly with halogen-antimony composite flame retardant system
Based on, although halogen-antimony system fire retardant effect is good, dosage is often higher (25% or more), thus will lead to the mechanics of materials
The serious reduction of energy and processing fluidity, the processing fluidity of especially material, which has, to be greatly lowered, so that its molding be made to add
Work method is very restricted.
It is also higher and higher for the demand and performance requirement of fire proofing due to the gradually rise of new energy vehicle, not only want
Ask it with preferable flame retardant property, and need to match a variety of moulding process such as extrusion molding, injection molding, blow molding, molding etc., roving glass fiber exists
Line mould pressing process (Long glass Fiber Thermoplastics-Direct, hereinafter referred to as LFT-D) is exactly new in recent years
The die press technology for forming of emerging a kind of high efficiency, low cost.Traditional anti-flaming polypropylene material is due in fire-retardant stability, processing
Limitation in terms of mobility, and the property requirements of LFT-D technique can not be well adapted for, therefore, it is necessary to combine LFT-D work
The operational characteristic of skill and specific processing flow, directionality develop its dedicated efficient stable flame-retardant polypropylene composite material.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of dedicated height of the online mould pressing process of roving glass fiber
Flow high flame retardant PP composite material.
The purpose of the present invention is achieved through the following technical solutions:
A kind of dedicated high flowing high flame retardant PP composite material of online mould pressing process of roving glass fiber, it is characterised in that:
Raw material including following parts by weight:
Further, the common co-polypropylene of the high fluidity, under 230 DEG C, the test condition of 2.16Kg, melting
Index is 30~90g/10min, notch impact strength >=10kJ/m2。
Further, the described high flowing high crystalline co-polypropylene melts under 230 DEG C, the test condition of 2.16Kg
Melting index is 30~120g/10min, structure isotacticity >=90%, notch impact strength >=5kJ/m2。
Further, organic hypophosphite fire retardant is mainly characterized by novel, efficient, high heat resistance organic
One or more of hypo-aluminum orthophosphate combustion inhibitor or organic zinc hypophosphite fire retardant.
Further, Halogen phosphorus-nitrogenated flame retardant is the non-halogen system expansion of carbon source, acid source, gas source three-phase composite
Type fire retardant.
Further, the fire retarding synergist is with magnesium hydroxide, aluminium hydroxide, the boron for assisting surface carbonation nitride layer
It is one or more of in sour zinc, boric acid etc..
The second object of the present invention is that providing a kind of dedicated high flowing high flame retardant of online mould pressing process of roving glass fiber gathers
The preparation method of acrylic composite, the method the following steps are included:
(1) the common co-polypropylene of high fluidity, high flowing high crystalline co-polypropylene are weighed by the weight percent,
It is uniformly mixed, obtains mixed raw material A, weigh organic hypophosphite fire retardant, Halogen phosphorus-nitrogen system by the weight percent and hinder
Agent, fire retarding synergist are fired, is uniformly mixed, obtains mixed raw material B.
(2) by after the distribution drying of above-mentioned mixed raw material A, B, mixed raw material A is placed in meshing co rotating twin screw extrusion
It in main feeding bin, is added in the machine barrel of extruder through feed screw, mixed raw material B is added to extruder from side spout
In, extruder screw diameter is 35mm, and draw ratio L/D is 40, and each zone temperature that main barrel is exported from feed opening to head is set
Be set to: 60 DEG C, 180 DEG C, 200 DEG C, 210 DEG C, 220 DEG C, 220 DEG C, 220 DEG C, engine speed are 200 revs/min, are squeezed through melting
Out, high flowing high flame retardant PP composite material is made in cooling, granulation, drying and processing.
Compared with prior art, the invention has the following beneficial effects:
(1) aiming at the problem that traditional anti-flaming polypropylene material intrinsic " high dosage, flame retardant effect are unstable ", using having
Machine hypophosphites+organic phosphorus-nitrogen compound flame-retardant system is aided with the fire retarding synergist of specific aim selection, carbide surface is covered
The flame retardant effect of cap rock is brought into play well, meanwhile, high temperature resistant when also solving the exclusive use of organic phosphorus-nitrogen compound is steady
Qualitative question.
(2) it is used in compounding by the polypropylene matrix of different structure, different melting means, different anti-impact characteristics, in addition low dosage,
The processing fluidity of efficient flame-retardant system, modified polypropylene composite material obtained is obviously improved, and material foundation melting means has
It is obviously improved, it can be preferably applied in the online mould pressing process of LFT-D.
(3) the high flowing high flame retardant PP composite material being prepared according to the technical solution of the present invention, in low use
(1.03-1.08g/cm under the premise of amount, low-density3), the more conventional anti-flaming polypropylene material of flame retardant rating more goes a step further,
Up to UL94V-0 (0.8mm), the conventional mechanical property index of material such as tensile strength, impact strength and notch impact strength
It makes moderate progress, simultaneously as the flame-retardant system of reasonably combined and efficient, the low dosage of PP base-material, the processing fluidity ginseng of material
Number is significantly promoted, and can preferably match the technique requirement of LFT-D, is a kind of lightweight resistance with conspicuous characteristics, efficient, low-density
Fire polypropylene technology scheme.
Specific embodiment
Below by specific embodiment, the present invention is described further, and the embodiment is merely to illustrate this hair
It is bright rather than limiting the invention.
The embodiment of the present invention is raw materials used:
PP-1: the common co-polypropylene of high fluidity, Zhenghai refinery, melt index MFR be 30g/10min (230 DEG C,
2.16Kg), notch impact strength 12.7kJ/m2。
PP-2: height flowing high crystalline co-polypropylene, Yangtze petrochemical industry, melt index MFR be 60g/10min (230 DEG C,
2.16Kg), notch impact strength 6.9kJ/m2。
PP-3: height flowing high crystalline co-polypropylene, South Korea SK, melt index MFR be 128g/10min (230 DEG C,
2.16Kg), notch impact strength 48kJ/m2。
PP-4: height flowing high crystalline co-polypropylene, South Korea Ba Saier, melt index MFR be 90g/10min (230 DEG C,
2.16Kg), notch impact strength 54kJ/m2。
Organic hypophosphite fire retardant: OP-935, Switzerland's Klein, available phosphorus content: 23-24%.
Organic hypophosphite fire retardant: FR-ADP 01, third of the twelve Earthly Branches source new material, available phosphorus content: 23-25%.
Organic hypophosphite fire retardant: ZX-ZDP950, Tianjin development chemical industry, available phosphorus content: 21-24%.
Halogen phosphorus-nitrogenated flame retardant: PP-FR 8310, phosphorus-nitrogen compound system, available phosphorus content (13-17%), available nitrogen
Content (18-22%), the gloomy chemical industry of the Zhejiang rising sun.
Fire retarding synergist: modified aluminium hydroxide, golden dagger-axe new material.
Fire retarding synergist: zinc borate, Shandong Thailand star chemical industry.
Properties of product test:
Density measurement: ISO1183-1 standard testing is pressed；
Melt flow rate (MFR) test；By ISO1133-1 standard testing, test condition is 230 DEG C, 2.16Kg.
The test of melt helical length: it is carried out on shake moral EM320-SVP/3 small injecting machine, using the dedicated survey of helix
Test die is molded, is tested, and injection temperature is 180-200 DEG C.
Tensile property: it is carried out by ISO527-2 standard, test rate 50mm/min.
Bending property: it is carried out by IS178 standard, span 64mm, test rate 2mm/min.
Impact and notched impact properties: being carried out on impact tester for simple supported beam by ISO179-1 standard, and batten notch is A
Type is tested under room temperature (23 DEG C), low temperature (- 30 DEG C) respectively.
Flame retardant property: by the standard method of test of UL94 vertical combustion, in MICHAEL DRAKE DRK-310 horizontal vertical combustion testing
It is tested in instrument, test bars thickness is respectively 1.6mm and 0.8mm.
Embodiment 1
The common co-polypropylene of high fluidity, high flowing high crystalline copolymerization third are weighed by 1 data of embodiment shown in table 1
Alkene is uniformly mixed, obtains mixed raw material A；It is fire-retardant that organic hypophosphite fire retardant, Halogen phosphorus-nitrogen system are weighed by 1 data of embodiment
Agent, fire retarding synergist are uniformly mixed, and wait until mixed raw material B.
It is tightly engaged at 1 and prepares the high flowing high flame retardant polypropylene composite materials material in parallel dual-screw extruding machine
Material；Detailed process is as follows: mixed raw material A is placed in the main feeding bin of meshing co rotating twin screw extrusion, through feed screw plus
Entering into the machine barrel of extruder, mixed raw material B is added in extruder from side spout, extruder screw diameter is 35mm,
Draw ratio L/D is 40, each zone temperature setting that main barrel is exported from feed opening to head are as follows: 60 DEG C, 180 DEG C, 200 DEG C, 210
DEG C, 220 DEG C, 220 DEG C, 220 DEG C, engine speed be 200 revs/min, through processes such as melting extrusion, cooling, granulation, drying and processings
After obtain product.
Embodiment 2
The common co-polypropylene of high fluidity, high flowing high crystalline copolymerization third are weighed by 2 data of embodiment shown in table 1
Alkene is uniformly mixed, obtains mixed raw material A；It is fire-retardant that organic hypophosphite fire retardant, Halogen phosphorus-nitrogen system are weighed by 2 data of embodiment
Agent, fire retarding synergist are uniformly mixed, and wait until mixed raw material B.
It is tightly engaged at 1 and prepares the high flowing high flame retardant polypropylene composite materials material in parallel dual-screw extruding machine
Material；Detailed process is as follows: mixed raw material A is placed in the main feeding bin of meshing co rotating twin screw extrusion, through feed screw plus
Entering into the machine barrel of extruder, mixed raw material B is added in extruder from side spout, extruder screw diameter is 35mm,
Draw ratio L/D is 40, each zone temperature setting that main barrel is exported from feed opening to head are as follows: 60 DEG C, 180 DEG C, 200 DEG C, 210
DEG C, 220 DEG C, 220 DEG C, 220 DEG C, engine speed be 200 revs/min, through processes such as melting extrusion, cooling, granulation, drying and processings
After obtain product.
Embodiment 3
The common co-polypropylene of high fluidity, high flowing high crystalline copolymerization third are weighed by 3 data of embodiment shown in table 1
Alkene is uniformly mixed, obtains mixed raw material A；It is fire-retardant that organic hypophosphite fire retardant, Halogen phosphorus-nitrogen system are weighed by 3 data of embodiment
Agent, fire retarding synergist are uniformly mixed, and wait until mixed raw material B.
It is tightly engaged at 1 and prepares the high flowing high flame retardant polypropylene composite materials material in parallel dual-screw extruding machine
Material；Detailed process is as follows: mixed raw material A is placed in the main feeding bin of meshing co rotating twin screw extrusion, through feed screw plus
Entering into the machine barrel of extruder, mixed raw material B is added in extruder from side spout, extruder screw diameter is 35mm,
Draw ratio L/D is 40, each zone temperature setting that main barrel is exported from feed opening to head are as follows: 60 DEG C, 180 DEG C, 200 DEG C, 210
DEG C, 220 DEG C, 220 DEG C, 220 DEG C, engine speed be 200 revs/min, through processes such as melting extrusion, cooling, granulation, drying and processings
After obtain product.
Embodiment 4
The common co-polypropylene of high fluidity, high flowing high crystalline copolymerization third are weighed by 5 data of embodiment shown in table 1
Alkene is uniformly mixed, obtains mixed raw material A；It is fire-retardant that organic hypophosphite fire retardant, Halogen phosphorus-nitrogen system are weighed by 4 data of embodiment
Agent, fire retarding synergist are uniformly mixed, and wait until mixed raw material B.
It is tightly engaged at 1 and prepares the high flowing high flame retardant polypropylene composite materials material in parallel dual-screw extruding machine
Material；Detailed process is as follows: mixed raw material A is placed in the main feeding bin of meshing co rotating twin screw extrusion, through feed screw plus
Entering into the machine barrel of extruder, mixed raw material B is added in extruder from side spout, extruder screw diameter is 35mm,
Draw ratio L/D is 40, each zone temperature setting that main barrel is exported from feed opening to head are as follows: 60 DEG C, 180 DEG C, 200 DEG C, 210
DEG C, 220 DEG C, 220 DEG C, 220 DEG C, engine speed be 200 revs/min, through processes such as melting extrusion, cooling, granulation, drying and processings
After obtain product.
Embodiment 5
The common co-polypropylene of high fluidity, high flowing high crystalline copolymerization third are weighed by 5 data of embodiment shown in table 1
Alkene is uniformly mixed, obtains mixed raw material A；It is fire-retardant that organic hypophosphite fire retardant, Halogen phosphorus-nitrogen system are weighed by 5 data of embodiment
Agent, fire retarding synergist are uniformly mixed, and wait until mixed raw material B.
It is tightly engaged at 1 and prepares the high flowing high flame retardant polypropylene composite materials material in parallel dual-screw extruding machine
Material；Detailed process is as follows: mixed raw material A is placed in the main feeding bin of meshing co rotating twin screw extrusion, through feed screw plus
Entering into the machine barrel of extruder, mixed raw material B is added in extruder from side spout, extruder screw diameter is 35mm,
Draw ratio L/D is 40, each zone temperature setting that main barrel is exported from feed opening to head are as follows: 60 DEG C, 180 DEG C, 200 DEG C, 210
DEG C, 220 DEG C, 220 DEG C, 220 DEG C, engine speed be 200 revs/min, through processes such as melting extrusion, cooling, granulation, drying and processings
After obtain product.
Embodiment 6
The common co-polypropylene of high fluidity, high flowing high crystalline copolymerization third are weighed by 6 data of embodiment shown in table 1
Alkene is uniformly mixed, obtains mixed raw material A；It is fire-retardant that organic hypophosphite fire retardant, Halogen phosphorus-nitrogen system are weighed by 6 data of embodiment
Agent, fire retarding synergist are uniformly mixed, and wait until mixed raw material B.
It is tightly engaged at 1 and prepares the high flowing high flame retardant polypropylene composite materials material in parallel dual-screw extruding machine
Material；Detailed process is as follows: mixed raw material A is placed in the main feeding bin of meshing co rotating twin screw extrusion, through feed screw plus
Entering into the machine barrel of extruder, mixed raw material B is added in extruder from side spout, extruder screw diameter is 35mm,
Draw ratio L/D is 40, each zone temperature setting that main barrel is exported from feed opening to head are as follows: 60 DEG C, 180 DEG C, 200 DEG C, 210
DEG C, 220 DEG C, 220 DEG C, 220 DEG C, engine speed be 200 revs/min, through processes such as melting extrusion, cooling, granulation, drying and processings
After obtain product.
The dedicated high flowing high flame retardant PP composite material of the online mould pressing process of 1 roving glass fiber of table formula table (unit:
Gram)
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| PP-1 | 30 | 30 | 30 | 30 | 30 | 30 |
| PP-2 | 52 | 47 | ||||
| PP-3 | 40 | 47 | ||||
| PP-4 | 43 | 35 | ||||
| OP-935 | 5 | 15 | 12 | 10 | 12 | 10 |
| FR-ADP 01 | 10 | 5 | 10 | 15 | ||
| PP-FR 8310 | 10 | 5 | ||||
| Modified aluminium hydroxide | 3 | 5 | 10 | |||
| Zinc borate | 10 | 3 | 6 |
Comparative example 1
Fire-retardant PP trade mark POLIFOR-6000/V0-AF-EP, Italian So.F.TER company are commercially available.
Table 2: the dedicated high flowing high flame retardant Properties of Polypropylene Composite test result of the online mould pressing process of roving glass fiber
From the point of view of the material properties test data of embodiment 1-6 each in table 2, the processing fluidity of each embodiment is held in
Higher level, material melt finger and helical length is significantly better than that the commercially available fire-retardant PP trade mark (comparative example 1), this is for true
The important prerequisite that the online mould pressing process of subsequent LFT-D runs well is protected, this mainly has benefited from this patent about PP substrate
Distribute rationally.
Each material characteristic data of further comparative example 1-6 is it is found that select reasonable fire retardant systems not only can be true
Protecting material has good flame retardant rating, and can reduce the usage amount of fire retardant to the maximum extent, reduces the self weight density of material,
To play certain lightweight weight loss effect.Although embodiment 2 and embodiment 6 have preferable flame retardant rating (V-0,
0.8mm), but fire retardant total amount is big, leads to density (1.13-1.15g/cm3) it is apparently higher than other embodiments；And if reducing fire-retardant
Dosage, then flame retardant rating can decrease (embodiment 1, embodiment 5) again, this is very for subsequent finished parts combustion testing
Unfavorable factor；Because usually seeing, embodiment 4 has the various aspects such as processing fluidity, flame retardant property and the self weight density of compound material
There is optimal performance, in the lower (1.06g/cm of density3) under the premise of, pass through the compounded combination and optimization dosage of fire retardant
Selection, realizes highest flame retardant rating (V-0,0.8mm), and preferably melt finger and helical length, shows the embodiment
With optimal application effect, and it is also that there is good processing and forming to show in actual LFT-D mould pressing process, is a kind of high
The light-weighted PP composite material of processing fluidity, high flame-retardant property, low-density, various performance characteristics are especially suitable for working as
The LFT-D technique of the large-scale planarization product of such as battery mould the cover, air-conditioner housing, bottom guard plate in preceding automobile structure, with
Newly can vehicle industrialization process continuous acceleration, the application range of material and field will also further be expanded, deeply.
Claims (9)
1. a kind of dedicated high flowing high flame retardant PP composite material of online mould pressing process of roving glass fiber, it is characterised in that: packet
Include the raw material of following parts by weight:
2. a kind of dedicated high flowing high flame retardant polypropylene composite materials of the online mould pressing process of roving glass fiber according to claim 1
Material, it is characterised in that: the common co-polypropylene of the high fluidity, under 230 DEG C, the test condition of 2.16Kg, melting
Index is 30~90g/10min, notch impact strength >=10kJ/m2。
3. a kind of dedicated high flowing high flame retardant polypropylene composite materials of the online mould pressing process of roving glass fiber according to claim 1
Material, it is characterised in that: the described high flowing high crystalline co-polypropylene is under 230 DEG C, the test condition of 2.16Kg, melting
Index is 30~120g/10min, structure isotacticity >=90%, notch impact strength >=5kJ/m2。
4. a kind of dedicated high flowing high flame retardant polypropylene composite materials of the online mould pressing process of roving glass fiber according to claim 1
Material, it is characterised in that: organic hypophosphite fire retardant is that novel, efficient, high heat resistance organic hypo-aluminum orthophosphate is fire-retardant
One or more of agent or organic zinc hypophosphite fire retardant.
5. a kind of dedicated high flowing high flame retardant polypropylene composite materials of the online mould pressing process of roving glass fiber according to claim 4
Material, it is characterised in that: organic hypophosphite fire retardant is selected from organic hypophosphite fire retardant OP-935, FR-ADP
01, one or more of ZX-ZDP950.
6. a kind of dedicated high flowing high flame retardant polypropylene composite materials of the online mould pressing process of roving glass fiber according to claim 1
Material, it is characterised in that: the Halogen phosphorus-nitrogenated flame retardant is the non-halogen system intumescent of carbon source, acid source, gas source three-phase composite
Fire retardant.
7. a kind of dedicated high flowing high flame retardant polypropylene composite materials of the online mould pressing process of roving glass fiber according to claim 6
Material, it is characterised in that: in the Halogen phosphorus-nitrogenated flame retardant, available phosphorus content 13-17%, effective nitrogen content is 18-
22%.
8. a kind of dedicated high flowing high flame retardant polypropylene composite materials of the online mould pressing process of roving glass fiber according to claim 1
Material, it is characterised in that: the fire retarding synergist is with magnesium hydroxide, aluminium hydroxide, the boron for assisting surface carbonation nitride layer
It is one or more of in sour zinc, boric acid.
9. according to claim 1-8 it is one of any described in height flowing high flame retardant PP composite material preparation method, spy
Sign is: the following steps are included:
(1) the common co-polypropylene of high fluidity, high flowing high crystalline co-polypropylene, mixing are weighed by the weight percent
Uniformly, mixed raw material A is obtained；It is fire-retardant that organic hypophosphite fire retardant, Halogen phosphorus-nitrogen system are weighed by the weight percent
Agent, fire retarding synergist are uniformly mixed, obtain mixed raw material B；
(2) by after the distribution drying of above-mentioned mixed raw material A, B, the mixed raw material A master for being placed in meshing co rotating twin screw extrusion is fed
It in feed bin, is added in the machine barrel of extruder through feed screw, mixed raw material B is added in extruder from side spout, squeezed
Machine screw diameter is 35mm out, and draw ratio L/D is 40, each zone temperature setting that main barrel is exported from feed opening to head are as follows:
60 DEG C, 180 DEG C, 200 DEG C, 210 DEG C, 220 DEG C, 220 DEG C, 220 DEG C, engine speed is 200 revs/min, through melting extrusion, cold
But, it is granulated, drying and processing, high flowing high flame retardant PP composite material is made.
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| CN116082750A (en) * | 2023-01-31 | 2023-05-09 | 宁波福瑞科新材料有限公司 | Flame-retardant polypropylene resin, flame-retardant plate and processing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107141591A (en) * | 2017-06-08 | 2017-09-08 | 北京化工大学 | A kind of few additive halogen-free anti-flaming polypropylene material and preparation method thereof |
| CN107828084A (en) * | 2016-09-15 | 2018-03-23 | 科莱恩塑料和涂料有限公司 | Fire retardant combination of stabilizers for thermoplastic polymer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107828084A (en) * | 2016-09-15 | 2018-03-23 | 科莱恩塑料和涂料有限公司 | Fire retardant combination of stabilizers for thermoplastic polymer |
| CN107141591A (en) * | 2017-06-08 | 2017-09-08 | 北京化工大学 | A kind of few additive halogen-free anti-flaming polypropylene material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116082750A (en) * | 2023-01-31 | 2023-05-09 | 宁波福瑞科新材料有限公司 | Flame-retardant polypropylene resin, flame-retardant plate and processing method thereof |
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Application publication date: 20190201 |